<?php

namespace Admin\Controller;

use Library\PlupLoad\PlupLoad;

/**
 * 上传控制器
 *
 * @author zhiyuan
 *        
 */

class PluploadController extends AdminController {
	public function index() {
		Cookie ( '__pluploadforward__', $_SERVER ['REQUEST_URI'] ); // 记录当前列表页的cookie
		$this->meta_title = '文件上传';
		$this->display ();
	}
	public function upload() {
		// Make sure file is not cached (as it happens for example on iOS devices)
		header ( "Expires: Mon, 26 Jul 1997 05:00:00 GMT" );
		header ( "Last-Modified: " . gmdate ( "D, d M Y H:i:s" ) . " GMT" );
		header ( "Cache-Control: no-store, no-cache, must-revalidate" );
		header ( "Cache-Control: post-check=0, pre-check=0", false );
		header ( "Pragma: no-cache" ); 
		
		
		// 5 minutes execution time
		@set_time_limit ( 5 * 60 );
		
		// Settings
		$targetDir = 'Uploads/Plupload';
		$cleanupTargetDir = true; // Remove old files
		$maxFileAge = 5 * 3600; // Temp file age in seconds
		                        
		// Create target dir
		if (! file_exists ( $targetDir )) {
			@mkdir ( $targetDir );
		}
		
		// Get a file name
		if (isset ( $_REQUEST ["name"] )) {
			$fileName = $_REQUEST ["name"];
		} elseif (! empty ( $_FILES )) {
			$fileName = $_FILES ["file"] ["name"];
		} else {
			$fileName = uniqid ( "file_" );
		}
		$filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
		
		// Chunking might be enabled
		$chunk = isset ( $_REQUEST ["chunk"] ) ? intval ( $_REQUEST ["chunk"] ) : 0;
		$chunks = isset ( $_REQUEST ["chunks"] ) ? intval ( $_REQUEST ["chunks"] ) : 0;
		
		// Remove old temp files
		if ($cleanupTargetDir) {
			if (! is_dir ( $targetDir ) || ! $dir = opendir ( $targetDir )) {
				die ( '{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}' );
			}
			
			while ( ($file = readdir ( $dir )) !== false ) {
				$tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
				
				// If temp file is current file proceed to the next
				if ($tmpfilePath == "{$filePath}.part") {
					continue;
				}
				
				// Remove temp file if it is older than the max age and is not the current file
				if (preg_match ( '/\.part$/', $file ) && (filemtime ( $tmpfilePath ) < time () - $maxFileAge)) {
					@unlink ( $tmpfilePath );
				}
			}
			closedir ( $dir );
		}
		
		// Open temp file
		if (! $out = @fopen ( "{$filePath}.part", $chunks ? "ab" : "wb" )) {
			die ( '{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}' );
		}
		
		if (! empty ( $_FILES )) {
			if ($_FILES ["file"] ["error"] || ! is_uploaded_file ( $_FILES ["file"] ["tmp_name"] )) {
				die ( '{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}' );
			}
			
			// Read binary input stream and append it to temp file
			if (! $in = @fopen ( $_FILES ["file"] ["tmp_name"], "rb" )) {
				die ( '{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}' );
			}
		} else {
			if (! $in = @fopen ( "php://input", "rb" )) {
				die ( '{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}' );
			}
		}
		
		while ( $buff = fread ( $in, 4096 ) ) {
			fwrite ( $out, $buff );
		}
		
		@fclose ( $out );
		@fclose ( $in );
		
		
		// Check if file has been uploaded
		
		if (! $chunks || $chunk == $chunks - 1) {
			// Strip the temp .part suffix off
			rename ( "{$filePath}.part", $filePath );
		}
		
		// Return Success JSON-RPC response
		die ( '{"jsonrpc" : "2.0", "result" : null, "id" : "id"}' );

	}
}

?>